How do I delete a group? - Microsoft Support
support.microsoft.com › en-us › officeOnly the group owner can delete a group. Go to the group contact card of a group that you want to delete (either by tapping on the group header name in a group shared mailbox or tapping on the group avatar in group email conversations). Tap on the Edit button in the top right hand corner. Use the Delete Group button at the bottom of the Edit ...